Tramadol is a synthetic analgesic (not a narcotic) that does not have a high affinity for the opioid receptors in the brain - which simply means that it works differently than narcotic pain drugs to reduce pain. Several studies have found that tramadol can be effective in alleviating withdrawl symptoms from opioids.
Tramadol is actually just one of several drugs that are used to manage withdrawl symptoms.
Others include clonidine, LAAM, levomethadyl, naloxone, naltrexone, methadone
and, the one most often used, buprenorphine.
So, the answer is yes, Tramadol, taken under a doctor's supervision, can be effective in reducing withdrawl symptoms from oxycontin or other narcotic pain relievers.